downforeveryoneorjustme.com is a web-based tool that you could use to see if your site is having a downtime for everyone or its just you. Don't freak out if it say's your site is down. Contact your host if you are having some issues about the hosting service or spefically about the downtime. Having this tool will not only lessen the burden for your host in answering questions about downtime but it can also give you an idea how much downtime your website is experiencing in an approximation.
Everytime i use it. i couldn't see a downtime on my blog. I think its because i am hosted by blogspot which is a very good free hosting service. Visit the web-based tool to get more information about it.
It is a trial version for UptimeParty which offers paid service to watch your hosting service at a low cost when you have more than 3 servers to monitor. But its totally free of use when you have only one server to monitor.
